Rock River at Fort Atkinson

1. 20.00 ftNumerous roads are flooded: Highway 106 and North Shore Road southwest of Fort Atkinson, Sinnissippi Dr, Fox Hill Rd, Bark River Rd from Kutz Rd to Rock River Rd, Ralph Rd, etc. Water may cover Hwy 106 east of city. Rock River Road is flooded. Water surrounds some homes and businesses near the river along Highway 106 and at the end of Vets Lane near the intersection of Highway 106 and Blackhawk Island Road. There is widespread agricultural land flooding east of Fort Atkinson along Highway 106.
2. 18.50 ftNumerous roads are flooded and closed in the Fort Atkinson area, including Rock River Road about 1 mile east of Fort Atkinson, Sinnissipi Drive, Ralph Rd, Bark River Road from Kutz Road to Rock River Road. Water surrounds some homes and businesses close to the river at the end of Vets Lane southwest of Fort Atkinson near the intersection of Highway 106 and Blackhawk Island Road.
3. 17.50 ftFloodwaters partially cover low spots on Highway 106 near Rock River Park. A riverside walkway near South Water Street in downtown Fort Atkinson is closed. A few homes and businesses are surrounded by water at the end of Vets lane near the intersection of Highway 106 and Blackhawk Island Road about 1 mile southwest of Fort Atkinson. North Shore Road about 1 mile southwest of Fort Atkinson is closed. Ralph Rd impacted. Floodwaters cover fields on the east side of Fort Atkinson.
4. 17.00 ftWater surrounds a few homes and business at the end of Vets Lane and Rock River Rd. Flooded roads: Sinissippi Drive, Vets Ln, Fox Hill Rd, Bark River Road from Kutz Road to Rock River Road, Rock River Rd from Milwaukee Ave E to Hwy 106, North Shore Rd, Ralph Rd. The river walkway in Fort Atkinson, Mechanic St boat launch, parking lot of Purdy St, yards along E Milwaukee Ave, yards northern end of Rock River Rd, yards on Rodgers St flood. Water backs up Bark River into Nature Park and parking lot.
5. 16.50 ftIn the Fort Atkinson area, the following roads are impacted: Sinnissippi Drive, Bark River Road from Kutz Road to Rock River Road and E Milwaukee Ave, and Rock River Road from Highway 106 to the Fort Atkinson city limits. Water is in park land near the river in Fort Atkinson.
6. 16.00 ftFloodwaters affect some park land and boat launches.
7. 14.50 ftWater overflows the lowest river banks in Fort Atkinson flooding low lying land adjacent to the river.

Chance of flooding, September to November

The three-month chances are the River Forecast Centers’ long-range flood outlook, issued September 25, 2026.

Most recent crests

• April 20, 2026: 17.40 ft
• July 6, 2024: 16.02 ft
• April 8, 2023: 15.21 ft
• June 17, 2022: 13.67 ft
• April 14, 2022: 14.01 ft
• March 16, 2021: 13.44 ft
• March 12, 2021: 13.13 ft
• March 29, 2020: 15.52 ft
• October 12, 2019: 16.82 ft
• March 24, 2019: 17.22 ft

• UpstreamRock River at Jefferson
• DownstreamRock River at Lake Koshkonong
• Bark River at Rome
• Rock River at Newville
• Crawfish River at Milford
• Yahara River at Fulton
• Rock River at Watertown
• Turtle Creek at Clinton

Forecasts by the North Central River Forecast Center. Forecasts are issued as needed during times of high water, but are not routinely available. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 24 hours into the future from the forecast issuance time. River forecasts for this location take into account past precipitation and the precipitation amounts expected approximately 48 hours into the future from the forecast issuance time.

Stage, flood stages, impacts and crest history from NOAA’s National Water Prediction Service. Streamflow and the daily record from the U.S. Geological Survey.